Question

A golf ball is selected at random from a golf bag. If the golf bag contains 5 type A​ balls, 8 type B​ balls, and 3 type C​ balls, find the probability that the golf ball is not a type A ball.

Answer 1

`(11)/(16)`

Explanation:

The probability of not Type A ball is basically the "number of not type A" divided by the total number of balls in the bag.

There are

Type A = 5 balls

Type B = 8 balls

Type C = 3 balls

Total = 5 + 8 + 3 = 16 balls

NOT TYPE A means either type B and type C:

8 + 3 = 11 balls

So, probability of not type A ball is: 11/16